Synthesis and Characterization of 2D-WS2 Incorporated Polyaniline Nanocomposites as Photo Catalyst for Methylene Blue Degradation.

2D-WS ₂ incorporated polyaniline nanocomposites (WS ₂ -PANI) with varying WS ₂ loadings were synthesized by a facile in situ oxidative polymerization technique which effectively promoted photocatalytic waste-water remediation using methylene blue (MB) as the probe molecules. The physicochemical properties of WS ₂ -PANI (1-5) nanocomposites were investigated using multifarious techniques such as FT-IR, XRD, BET surface area, TGA, FESEM, and HRTEM. An electron microscopy analysis that was performed using HRTEM analysis confirm the layered structure of WS ₂ with periodic planes (100) separated by 0.27 nm. The photocatalytic performance of the WS ₂ -PANI (1-5) for MB degradation performed under UV photo irradiation clearly showed that 2 wt.% WS ₂ -PANI outperformed other variants with 93% degradation MB within 90 min. Furthermore, the catalytic material was reusable for five cycles without a significant loss of the catalytic performance.